Well, the notion of utilizing one scope among several different rifles is still quite logical/economical without having to recalibrate internal adjustments. The visual clarity of B&L scopes was tops for the period in which they were popular, but not up to what is available today. But B&L set-ups are just "trick" on vintage rifles...sorta like Lyman, or Unertl target scoped rifles. Something I noticed on my '98 Mauser B&L rear base...the mounting screw holes are on the right side. So be prepared that there may be some 'smithing involved (D&T, & maybe some stock inletting).